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維生素B_6與色氨酸代謝的關係在1942-3年經Lepkovsky氏和他的共同工作者發現後引起了濃厚的興趣。Lepkovsky氏等從缺乏維生素B_6的白鼠尿中提出一種黄色物質,此物質與1935年Musajo氏從飼血纖維朊(Fibrin)的白鼠尿中提出的黄尿酸(Xanthurenic acid)相同。據Lepkovsky氏等報告,不缺
The relationship between vitamin B_6 and tryptophan metabolism was strongly aroused after Lepkovsky’s and his co-workers discovered it in 1942-3. Lepkovsky et al. Proposed a yellow substance from the urine of rats lacking vitamin B_6, which is the same as Xanthurenic acid proposed by Musajo in 1935 from white rat urine of Fibrin. According to Lepkovsky’s other report, no shortage